package com.whyc.webSocket;

import com.whyc.config.WebSocketConfig;
import com.whyc.dto.Real.AlmDto;
import com.whyc.dto.Response;
import com.whyc.pojo.db_user.User;
import com.whyc.service.BattalarmDataService;
import com.whyc.service.DevalarmDataService;
import com.whyc.util.JsonUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpSession;
import javax.websocket.*;
import javax.websocket.server.ServerEndpoint;
import java.util.HashMap;
import java.util.Map;

/**
 * 实时
 */
@Component
@ServerEndpoint(value = "/devAlmReal",encoders = WebSocketEncoder.class,configurator = WebSocketConfig.class)
public class DevAlmRealSocket {
        private Session session;

        private Thread thread;

        private static DevalarmDataService service;

        private static HttpSession httpSession;

        private volatile boolean runFlag = true;

        private volatile Map<String, Thread> threadMap = new HashMap<>();

        private volatile Map<Long,Boolean> threadFlagMap = new HashMap<>();

        @Autowired
        public void setDevalarmDataService(DevalarmDataService service) {
            DevAlmRealSocket.service = service;
        }


        @OnOpen
        public void onOpen(Session session, EndpointConfig config) {
            this.session = session;
            this.httpSession = (HttpSession) config.getUserProperties().get("httpSession");
        }
        @OnMessage
        public void onMessage(Session session, String message) {
            AlmDto dto= JsonUtil.getGson().fromJson(message,AlmDto.class);
            if(httpSession!=null){
                User user = (User) httpSession.getAttribute("user");
                dto.setUid(user.getId());
            }else{
                dto.setUid(1005);
            }
            thread = new Thread("Thread_realLockSocket") {
                @Override
                public void run() {
                    while (runFlag && !isInterrupted()) {
                        Thread thread = currentThread();
                        threadFlagMap.put(thread.getId(), true);
                        try {
                            Response res= service.getDevAlmReal(dto);
                            if (session.isOpen()) {
                                //推送信息
                                synchronized (session) {
                                    session.getBasicRemote().sendObject(res);
                                }
                                threadFlagMap.put(thread.getId(), false);
                            }
                            sleep(4000);
                        } catch (Exception e) {
                            interrupt();
                        }
                    }
                }
            };
            thread.start();
            threadFlagMap.put(thread.getId(),true);
            //停止老的socket线程
            Thread threadBefore = threadMap.get(session.getId());
            if(threadBefore !=null && threadBefore.isAlive()){
                while (threadFlagMap.get(threadBefore.getId())){
                }
                threadBefore.interrupt();
            }
            //将线程存储,便于调用定位
            threadMap.put(session.getId(), this.thread);
        }
        @OnClose
        public void onClose(CloseReason closeReason){
            System.err.println("closeReason = " + closeReason);
            runFlag = false;
            if (thread != null && thread.isAlive()) {
                thread.interrupt();
            }
            threadMap.remove(session.getId());
        }

        @OnError
        public void onError(Throwable error) {
            error.printStackTrace();
            if (thread != null && thread.isAlive()) {
                thread.interrupt();
            }
            threadMap.remove(session.getId());
        }
}